Toro Greensmaster TriFlex 3320/3420 Service Manual page 83

3. For traction related problems (e.g. machine will not
go up an incline), consider performing one or more of the
following tests:
A. Charge Relief Valve Pressure.
B. Piston (Traction) Pump Flow.
C. Wheel Motor Efficiency.
NOTE: The piston pump used on Greensmaster Tri-
Flex machines is equipped with relief valves for both the
forward and reverse direction. Due to engine output, it
is unlikely that traction pressure will reach relief valve
settings. If, however, a piston pump relief valve is leak-
ing or otherwise faulty, traction performance would be
affected.
Greensmaster 3320/3420
4. For problems with the steering and lift/lower circuit,
consider performing one or more of the following tests:
A. Steering/Lift Relief Valve Pressure.
B. Lower Cutting Units Relief Valve (RV) Pressure.
C. Steering/Lift Circuit Gear Pump Flow.
D. Power Steering Valve.
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